Car antenna



FIG. 1 is a perspective view of a car antenna showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front elevational view thereof; and,

FIG. 5 is a rear elevational view thereof.

The broken line showing of a mount depicts environment only and forms no part of the claimed design. 

The ornamental design for a car antenna, as shown and described. 